Home / 142,843.60-197,110.92-79,175.98

Finding the Fourth Proportional to 142,843.60, 197,110.92 and 79,175.98

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Solution

The fourth proportional to 142,843.60, 197,110.92 and 79,175.98 is: 109,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,843.60 : 197,110.92 = 79,175.98 : x
  2. Step 2: Convert to fraction form
    142,843.60/197,110.92 = 79,175.98/x
  3. Step 3: Cross multiply
    142,843.60x = 197,110.92 × 79,175.98
  4. Step 4: Simplify right side
    142,843.60x = 15,606,450,357.64
  5. Step 5: Solve for x
    x = 15,606,450,357.64/142,843.60
  6. Step 6: Final answer
    x = 109,255.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.